The agreement, which was signed by 195 nations in December 2015, aims to slow down the rate at which the planet is warming.

Before today's decision was made, several executives of US companies showed their disapproval of the US pulling out of the agreement. On Wednesday, a letter signed by the executives of major companies, including Facebook, Google, Apple, and Unilever, urged the president not to abandon the agreement.

After Trump announced his decision, Tesla and SpaceX CEO Elon Musk said that he will be leaving Trump's advisory council. Other executives have taken to social media to voice their concern.

Jeff Immelt, chairman and CEO of General Electric

Elon Musk, CEO of Tesla and SpaceX

Satya Nadella, CEO of Microsoft

Brad Smith, president of Microsoft

Aaron Levie, CEO of Box

Mark Cuban, owner of NBA's Dallas Mavericks

Lisa Jackson, vice president of environment, policy and social initiatives at Apple and former administrator of the US Environmental Protection Agency

Marc Benioff, CEO of Salesforce

Brent Saunders, CEO of Allergan

Sundar Pichai, CEO of Google

Lloyd Blankfein, CEO of Goldman Sachs

Mark Zuckerberg, CEO of Facebook

Bob Iger, chairman and CEO of The Walt Disney Company

Apple CEO, Tim Cook

In an email to employees on Thursday, following Trump's withdrawal announcement, Apple CEO Tim Cook said: "Climate change is real and we all share a responsibility to fight it. I want to reassure you that today's developments will have no impact on Apple's efforts to protect the environment."

Cook had phoned the White House earlier this week to urge President Donald Trump not to withdraw from the Paris climate deal.

Kevin Plank, CEO of Under Amour

Kevin Plank released a statement today disagreeing with Trump's decision to withdraw from the Paris agreement. He wrote:

"In 2015, the United States signed a contract with all of our closest allies and 194 member nations of the United Nations Framework Convention on Climate Change. I believe in keeping one’s word and doing everything possible to execute on our commitments.

We at Under Armour are disappointed by the Administration’s decision to withdraw from the Paris Climate Agreement as climate change continues to threaten our planet, our cities and our economies. Climate change is real and must be taken seriously by our business community, our customers, our neighbors and our elected officials. Sustainability has always been part of our DNA: it’s integral to how we live and work and is essential to our environment. As a business leader concerned with creating American jobs, I disagree with the decision to exit the Paris Accord.

Our word matters and it is our collective responsibility to help protect Mother Earth."